Data Scientist

Role- Data Scientist

Location: London, UK

Type of job : Contract

Work mode : Hybrid- 2 days onsite in a week

Responsibilities:

* Explore, clean, and analyse large, complex datasets to uncover patterns, trends, and opportunities that drive actionable insights.

* Develop, train, and validate machine learning, statistical, and predictive models that solve real business problems and deliver measurable impact.

* Design and run experiments (A/B tests, hypothesis tests, simulations) to evaluate ideas, quantify outcomes, and guide decision‑making.

* Collaborate with data engineers, analysts, product managers, and domain experts to translate business requirements into well‑defined modelling tasks.

* Build end‑to‑end ML pipelines—from feature engineering and preprocessing to deployment‑ready model outputs.

* Apply advanced techniques such as NLP, time‑series forecasting, anomaly detection, optimisation, or LLM/GenAI methods where relevant.

* Implement model evaluation frameworks using offline metrics, cross‑validation, online experiments, and human‑in‑the‑loop feedback loops.

* Communicate insights clearly through dashboards, visualisations, written summaries, and presentations tailored to technical and non‑technical stakeholders.

* Ensure models are interpretable and explainable where required, providing transparency into key drivers and assumptions.

* Work with engineering teams to deploy models into production, monitor performance, and retrain or recalibrate as data and conditions change.

Essential skills:

Hands-on experience with GenAI, Gemini or Open source LLMs and develop GenAI applications for Code Translation, Text Extraction, Summarisation and SDLC Optimization etc.

* Hands-on Experience with AI Agents, Chat bots, RAG (Retrieval-Augmented Generation), and vector databases. ( PG vector / croma DB )

* Hands-on Experience with GenAI Performance Evaluation tools like Pegasus, Ragas, DeepEval

* Create Conversational Interface with React JS or other Frontend components, Develop and deploy AI agents using LangGraph and ADK, A2A, MCP

* Strong programming skills in Python (experience with LangChain/LangGraph / LangSmith frameworks) and TypeScript ( preferable )

* Solid understanding of LLMs, prompt engineering, and graph-based workflows.

* Knowledge and implementation of Input and Output guardrails in addressing Hallucination, PII filtering, HAP and Bias etc.

* Implemented security best practices, Experience to address spikes and Denial of wallet attacks, DDoS attack and other Spike arrest strategies

* Knowledge of API Gateways and ISTIO , ability to Diagnose and intercept failures in End to End communication

* Hands-on Experience with API Development and Microservices architecture

Desirable experience:

* Strong experience applying machine learning, statistical modelling, and predictive analytics to real‑world business problems.

* Collaborate with cross-functional teams to ability to resolve end to end connectivity and Data Integrations

* Experience working with large, complex datasets, including data cleaning, feature engineering, and exploratory data analysis.

* Familiarity with LLMs, NLP techniques, and GenAI frameworks, including embeddings, prompt engineering, or fine‑tuning.

* Experience building end‑to‑end ML pipelines, including model validation, optimisation, deployment, and monitoring.

* Understanding of MLOps practices, including model versioning, model registries, CI/CD for ML, and automated training/inference workflows.

* Ability to translate business problems into analytical tasks and communicate insights in a clear, concise manner to technical and non‑technical audiences.

* Knowledge of data governance, including data quality, lineage, ethics, privacy considerations, and responsible AI principles.

* Comfort working with cloud platforms (GCP preferred) for model training, deployment, and scalable compute.

* A growth‑oriented mindset with enthusiasm for exploring new algorithms, tools, and emerging AI/ML techniques